番茄是需要光照强度较高的蔬菜,在早春大棚栽培番茄,光照强度远远满足不了它生长发育的需要。因此,春季大棚栽培番茄,除了在水、肥温度等方面下功夫外,充分合理地利用自然光照,是争取早熟高产不可忽视的一项重要措施。将番茄常规的“平式”栽培法改为“阶梯式”栽培法,使番茄最大程度地减少自身的遮阴面积,从而扩大了采光面积,使光照得到了充分利用,达到增产、增收的效果。阶梯式栽培法操作技术: 一、整地首先大棚在设计时必须为东西向,有后墙或一面坡大棚或土温室更好。一般棚高6米,长度不限。先按10:1的比例将棚内的土地整成北高南低的一面坡形,6米宽的大棚北面比南面土地高出60厘米。这就需要从南面地表挖出30厘米厚的土层垫到北面,中间不用挖然后深刨耧平形成一面坡。南面土层挖出 Tomatoes are vegetables that require high light intensity. Tomatoes are grown in early spring greenhouses. The light intensity can not meet the needs of its growth and development. Therefore, cultivation of tomato in greenhouse in spring, in addition to water, fertilizer temperature and other efforts, the full and reasonable use of natural light, is to strive for early yield can not be ignored is an important measure. The tomato “flat” cultivation method to “step” cultivation method, so that tomato to minimize its own shade area, thereby expanding the lighting area, the light has been fully utilized to achieve the effect of increasing production and income . Step-by-step cultivation techniques: First, the first greenhouses in the design must be east-west, with a back wall or slope greenhouses or soil greenhouse better. General shed height 6 meters, length is not limited. According to the ratio of 10: 1, the shed land will be integrated into the north and south of the lower side of the slope shape, 6 meters wide north of the greenhouse than the south of the land 60 cm higher. This requires dug 30 cm thick soil mat from the south surface to the north, without digging then deep plowing to form a slope. South soil dredged